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Method for cleaning gas channel branch pipe of atomizer

An atomizer and gas path technology, which is applied in the field of the gas path branch pipe of a pneumatic atomizer to achieve the effect of saving detection costs and improving atomization efficiency

Active Publication Date: 2014-05-21
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the construction characteristics of the atomizer, such methods are only suitable for cleaning or removing blockages in the atomizer liquid branch pipe

Method used

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  • Method for cleaning gas channel branch pipe of atomizer

Examples

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Comparison scheme
Effect test

example 1

[0038] Clean the nebulizer that is clogged by the salt deposit of the sample solution.

[0039] Prepare a hydrochloric acid solution with a concentration of 50% by volume, that is, add 50mL of concentrated hydrochloric acid to 50mL of distilled water and mix well. With the blocked nebulizer disassembled from the instrument, follow the back pumping solution cleaning (e-g) operation steps repeatedly for 3 times to completely dissolve the blocked salt deposits in the gas branch pipe and discharge the cleaning solution, and then perform step h Clean the residual cleaning solution in the gas branch pipe with distilled water for 3 times.

example 2

[0041] Clean the nebulizer that is clogged by the salt deposit of the sample solution.

[0042] Prepare a nitric acid solution with a concentration of 55% by volume, that is, add 55mL of concentrated nitric acid to 40mL of distilled water and mix well. With the blocked nebulizer disassembled from the instrument, follow the back pumping solution cleaning (e-g) operation steps repeatedly for 5 times to completely dissolve the blocked salt deposits in the gas branch pipe and discharge the cleaning solution, and then perform step h Clean the remaining cleaning solution in the gas branch pipe with distilled water for 4 operations.

example 3

[0044] Clean nebulizers that are clogged with soluble foreign particles.

[0045] Prepare a hydrochloric acid solution with a concentration of 60% by volume, that is, add 60 mL of concentrated hydrochloric acid to 40 mL of distilled water and mix well. With the blocked nebulizer disassembled from the instrument, follow the back pumping solution cleaning (e-g) operation steps repeatedly for 5 times to completely dissolve the soluble foreign matter particles blocked in the gas branch pipe and discharge the cleaning solution, and then perform step h Clean the residual cleaning solution in the air branch pipe with distilled water 5 times.

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Abstract

The invention provides a method for cleaning a gas channel branch pipe of an atomizer. The method comprises a reverse high-pressure gas flow blowing step and / or a reverse solution pumping cleaning step, wherein the blowing step comprises the sub-steps that the gas inlet end of the gas channel branch pipe and the liquid inlet end of a liquid channel branch pipe are plugged, high-pressure gas flow is led into the atomizer through a nozzle continuously, and the gas inlet end is suddenly opened when the liquid inlet end keeps a plugged state; the cleaning step comprises the sub-steps that the nozzle is placed in cleaning solution and pumping operation is conducted on the gas inlet end, so that the gas channel branch pipe is filled with the cleaning solution, and substances to be cleaned in the gas channel branch pipe are discharged through the gas inlet end. The method further comprises the step that water is used for replacing the cleaning solution in the solution cleaning step so that rudimental cleaning solution in the gas channel branch pipe can be cleaned away. By means of the method, dirt or obstruction in the gas channel branch pipe of the atomizer can be eliminated, analysis and test performance of a device can be improved, spare part consumption can be reduced, and detection cost is reduced.

Description

technical field [0001] The invention relates to the technical field of maintenance and fault repair of elemental analysis instruments, in particular to a method capable of simply and efficiently cleaning the gas path branch pipe of a pneumatic atomizer on a chemical element composition detection and analysis instrument. Background technique [0002] At present, modern advanced element detection and analysis instruments such as inductively coupled plasma atomic emission spectrometry (ICP-OES) and inductively coupled plasma mass spectrometry (ICP-MS) are widely used in various industries. Pneumatic nebulizer is an important key component of this type of precision instrument and equipment. Its main function is to use the high-speed airflow in the air branch pipe on the atomizer to atomize the sample solution in the liquid branch pipe into a fine aerosol. Determination of elemental composition is carried out by introducing analytical instruments such as ICP-OES or ICP-MS. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B15/02
CPCB05B15/55
Inventor 成勇袁金红彭慧仙
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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